1) x^2=64 is the same as x=the root of 64 which gives us: (+-)8
2) here you must us pq-formel as:
5m^2-5m=60
5m^2-5m-60=0
(m^2-5m-60)/5=0
m^2-m-12=0
m=0,5(+-) the root of 0,25+12
m=0,5(+-)3,5
m1=0,5+3,5
m2=0,5-3,5
15) x^2=7x
x^2-7x=0 here there is two x, so:
x(x-7)=0
x1=0
x2=7
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Here you can only use PQ formula in all the others, just as I did in the question number 2</span>
M-(M•0.16) and M(.84) because the first one you need to multiply to find what 16% of m is then subtract that by m for the second one you subtract .16 from 1 which is .84, then you multiply that by m which will automatically take the 16% decrease which will give you your answer. Both ways give you a 16% decrease of m. I hope this helped
The equation shown on the table is y=2x
Answer:
C
Step-by-step explanation:
Edge 2021
62 jars of jam still left. 12 x 40 = 480. 542-480 = 62